Fastener



F. S. CARR. PASTENER.

APPLICATION FILED JAN. 3l. 1919.

Patented Apr. 13, w20.

UNITED STATES PATENT OFFICE.

FEEDS. CARR, 0F NEWTON, MASSACHUSETTS, ASSIGNOR` TO CARR FASTENER ICOMPA'NY, OF CAMBRIDGE, MASSACHUSETTS, A CORPORATION 0F MAINE.

Application filed January 3.1, 1919.

To all whom t may concern Be it known that I, FRED S. Cana, a citizen of the United States, and a resident of Newton, in the county of Middlesex, Commonwealth of h/Iassachusetts,` (whose postoiceaddress is-ca-re of Carr Fastenerr Company, Cambridge, Massachusetts,) have invented an Improvement in Fasteners, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention pertains to improvements in separable fasteners, and more particularly, though not exclusively, to improvements in small fasteners such as placket fasteners and the like.

In the drawings, which show on an enlarged scale a preferred form of my invention Figure 1 is an elevation of a preferred form of fastener connecting overlapping layers of fabric;

Fi 2 is a vertical section on the line 2-2 of Fig. 1;

Fig. 3 is a horizontal section on the line 8 3 of Fig. 1;

Fig. 4 is a plan of the preferred form of stud;

Fig. 5 is a side elevation of the preferred form of stud shown in Fig. 4; and

Fig. 6 is an end elevation of the stud shown in Fig. 4, taken from the bottom end thereof.

Referring to the drawings, and to the prelferred form of my invention selected for illustrative purposes, I have shown a cooperating stud and socket in which one of the members, preferably as shown the stud, is resiliently eXpansible, the resiliency being provided by an upstanding spring element 11 integral with the body of the fastener member with which it cooperates. Vhere, as shown in the drawings, the spring cooperates with the stud element, I prefer, as best shown in Fig. 4, to provide a relatively Hat body portion 12 having projecting upwardly therefrom a stud comprising portions 13, 14 connected by the upstanding flange spring 11, which is preferably of substantial length as shown, and which is preferably extended at 15, 16 to stien the connection between the spring 11 and the body portion of the stud member, and also to stifen the two separate halves of the body portion Specification of Letters Patent.

FASTENER.

Patented Apr. 13, 1920.

Serial No. 274,311.

thereby to prevent the fieXing of one relative to the other. The projections 15 and 16 from the springll preferably parallel the marginal port-ions of the slot which extends lengthwise of the socket separating the two halves of the stud. The projectionsll, 14, constituting the stud proper are preferably wedge-shaped, as viewed in Fig. 4, providing overhanging lips as best shown in Fig. G, the latterpreferabl-y having on their under sides relatively abrupt shoulders 17, 1S, adjacent the outer edges thereof.

The preferred form of stud, in the embodiment of my invention shown in the drawings, cooperates with the socket 19 having an opening therein adapted to fit over the stud portions 13, 14 when the latter are moved one toward the other by pressure of the sides of the socket thereon, which fleXes the spring 11. After the socket has been passed over the stud sufficiently to register with the slots in the stud, the sides of the stud spring outwardly so that the socket engages under the shoulders 17, 18. By reason of the wedge shape of the stud portions 13, 14, the stud may be separated from the socket by relative tipping movement of the stud and socket in one direction only, the sides of the aperture in the socket 19 serving to press together the stud portions 13, 14 on the smaller end thereof and thereby to release the socket from engagement'with the abrupt shoulders 17, 18. This occurs when the stud and socket are tipped in such a direction as to bring the sides of the aperture in the socket 19 into engagement with the smaller end of the wedge provided by the stud portions 13, 14.

The stud and socket, preferably as shown, project beyond one another at the opposite ends of the fasteners so that, if desired, separation may be effected by squeezing both ends of the fastener, one toward the other,

which results in a springing out of the lower Y.

portion of the socket over the narrow portions of the wedge of the stud portions 13, 14.

The preferred form of fastener is primarily adapted for use on a eXible fabric, and this flexibility of the fabric enables the opposite portions of the expansible fastener v element to spring together and apart when the fastener member having the resilient portion 11 is stitched or otherwise attached to the fabric.

Y as carrying the stud, it is obvious that theYY While I have shown the flexible element spring l1 may in seine instances be 'orined on the socket member, the latter being made expansible and the stud rigid. Similarly, it is obvious that While I preferably provide the smaller ends of the Wedge-shaped stud elements 13, 14 adjacent the resilient element 1lV Irma f if desired reverse the relative a position ot the broad and iiari'oivends ot the Wedge-shaped stud.

While .I have shown and described one embodiment ol: my invention, it ivill be iin- `derstood that changes involving omission7 Adeiined in the following claims.

Claimsz.. l. A separable fastener comprising, in

Ythe split, said extensions reinforcing the connection between the spring portion vand said body part. Y

2. A separable fastener comprising, in

combination, a stud and socket, one of YWhich Y includes a plate split substantially its Whole length and provided With a U-shaped upturned spring portion at one end thereof, said spring portion being of a width subf stantially greater than its thickness and having its greater dimension substantially perpendicular to the plate.`

- In testimony whereof I have signed my naine to this specification. Y Y

FRED S. CARR.l 

